CN110101462B - A push type adsorber for adsorbing human tissue - Google Patents
A push type adsorber for adsorbing human tissue Download PDFInfo
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- CN110101462B CN110101462B CN201910527558.8A CN201910527558A CN110101462B CN 110101462 B CN110101462 B CN 110101462B CN 201910527558 A CN201910527558 A CN 201910527558A CN 110101462 B CN110101462 B CN 110101462B
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- piston
- connecting pipe
- head
- piston rod
- valve core
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/322—Skin grafting apparatus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/12—Connection to driving members with piston-rods, e.g. rigid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/08—Check valves with guided rigid valve members shaped as rings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/322—Skin grafting apparatus
- A61B2017/3225—Skin grafting apparatus with processing of harvested tissue
Abstract
The invention discloses a pressing type adsorber for adsorbing human tissues, which comprises an air cylinder, a piston assembly and a one-way valve assembly, wherein the air cylinder comprises a piston running cavity and a connecting pipe, the connecting pipe is communicated with the piston running cavity, the piston assembly is arranged in the piston running cavity in an axially slidable manner, the one-way valve assembly is arranged at the inlet of the connecting pipe on the bottom surface of the piston running cavity, the piston assembly comprises a piston rod, a piston head and a piston, a gas channel is formed in the center of the piston rod in an axially penetrating manner, the piston rod and the piston head are separately provided and assembled together, the piston head is connected to the lower end of the piston rod, and a passage communicated with the gas; the piston is sleeved on the piston mounting part between the piston rod and the piston head, the lower end face of the piston is lapped at the top end of the piston head, the upper end face of the piston head is provided with a check valve at the position of the passage, and the lower end of the connecting pipe of the inflator is provided with an adsorption head which can provide corresponding adsorption force according to the thickness and the size of the leather sheet.
Description
Technical Field
The invention relates to the technical field of medical equipment application, in particular to a pressing type adsorber for adsorbing human tissues.
Background
With the development of science and the improvement of living standard, people pay more and more attention to self appearance instruments, especially on the aspect of skin, and pay more and more attention to beauty effects, so that medical operations gradually become more refined.
In surgical operations, such as skin grafting operations in hospitals, the skin grafting operations are mainly used for repairing various wounds (such as wounds caused by burns and scalds and trauma, secondary wounds after scar excision and the like), and the clinical application is extremely wide.
The skin donor areas at different positions are selected according to the position and size of the wound surface, and are usually selected at the parts with loose and more concealed skin, such as groin, inner side of upper arm, lower part of clavicle or wrist palm side.
The processing method of the skin piece comprises the following steps: after the skin is taken down, the deep surface of the scissors is flattened, redundant skin is cut off, the skin area can be directly sutured, if the skin is taken as a thick-layer skin, part of dermis left on the wound surface is cut off, and then the wound surface is sutured;
the skin sheet is transplanted to cover the wound surface, the edge is sewed and long lines are left for wrapping;
covering the leather sheet with oil gauze, stacking mesh gauze, uniformly pressing the leather sheet, and tying and fixing with the remained long thread to make the leather sheet closely contact with the pressed area, thereby facilitating the healing of the leather sheet.
In prior art, generally remove the skin piece using tweezers, but current tweezers, when removing the skin piece, need push down the skin piece earlier then for the skin piece clamping-force, the skin piece that is in between two tweezers handles just can be held by tweezers to the middle uplift, but the operation can cause the skin piece unevenness like this, when some skin piece tissues of current tweezers centre gripping simultaneously, because dynamics control is not accurate, the clamping part of tweezers can cause the skin piece tissue to break, be unfavorable for the skin piece healing, influence later stage skin pleasing to the eye.
In a surgical operation of a hospital, for example, in the surgical operation of the hospital, for the excision of a tumor, a blood vessel forceps is generally adopted for lifting, so as to achieve the purpose of taking out the tumor in the surgical treatment, and the defects are as follows: when the vessel forceps are used for clamping, when the clamping jaws are opened, the occupied space is large, the clamping jaws easily cause tissue damage, meanwhile, the tumor body is easily broken due to extrusion, the transfer chance of malignant tumors is increased, and unnecessary pain and heavy economic burden are brought to patients.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a pressing type adsorber for adsorbing human tissues, aiming at the current situation of the prior art, the adsorber can provide corresponding adsorption force according to the thickness and the size of the human tissues, ensure the integrity of the human tissues in the process of moving the human tissues, do not damage the human tissues, facilitate the later healing or the complete taking out of the human tissues, effectively avoid the problem of dead spring clamping and effectively control the pressing stroke.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a pressing type adsorber for adsorbing human tissues comprises an air cylinder, a piston assembly and a check valve assembly, wherein the air cylinder comprises a piston running cavity and a connecting pipe, the connecting pipe is communicated with the piston running cavity, the piston assembly is arranged in the piston running cavity in an axially slidable manner, the check valve assembly is arranged at an inlet of the connecting pipe on the bottom surface of the piston running cavity, the piston assembly comprises a piston rod, a piston head and a piston, a gas channel is formed in the center of the piston rod in an axially penetrating manner, the piston rod and the piston head are separately provided and assembled together, the piston head is connected to the lower end of the piston rod, and a passage communicated with the gas channel is arranged in the; the piston is sleeved on a piston mounting part between the piston rod and the piston head, the lower end face of the piston is lapped on the top end of the piston head, the upper end face of the piston head is provided with a check valve at a passage, the lower end of a connecting pipe of the air cylinder is provided with an adsorption head, when the piston moves downwards relative to the piston operation cavity, the check valve is opened, the check valve component is closed, and the piston operation cavity is allowed to be communicated with the outside through an air channel in the piston rod; when the piston moves upwards relative to the piston operation cavity, the check valve is closed, the check valve component is opened, and the piston operation cavity is communicated with the connecting pipe.
In order to optimize the technical scheme, the adopted measures further comprise:
the check valve assembly comprises a valve core and a sealing ring, the outer diameter of the valve core is matched with the aperture of a passage, an exhaust hole is formed in the valve core, an air hole communicated with the exhaust hole is formed in the outer wall of the valve core and close to the top end of the valve core, the lower end of the valve core is fixed in a connecting pipe, the top end of the valve core protrudes out of the bottom surface of a piston operation cavity, the sealing ring is sleeved on the top end of the valve core and used for opening or closing the air hole, when the air pressure in the connecting pipe is higher than the air pressure of the piston operation cavity, the air in the connecting pipe can enter the piston operation cavity from a gap between the sealing ring and the outer wall of the valve core, and when the air pressure.
The check valve comprises a valve seat, a valve pad and a spring, wherein the valve seat is fixed with the upper end face of the piston head, one end of the spring is connected with the valve seat in a matched mode, and the other end of the spring is connected with the valve pad in a matched mode.
A circle of annular convex body is arranged on the outer wall of the valve core and close to the lower end, and a sealing gasket is arranged between the annular convex body and the bottom surface of the piston running cavity.
The valve core is sleeved with a buffer ring, the buffer ring is positioned below the sealing ring, and the buffer ring can elastically deform.
A circle of flange body is formed above the piston mounting part on the piston rod, the lower end face of the flange body is abutted against the upper end face of the piston, a circle of clamping protrusion is vertically extended downwards on the periphery of the flange body, and a concave ring matched with the clamping protrusion is arranged on the upper end face of the piston.
An elastic resetting device is arranged between the piston rod and the air cylinder and comprises at least one arc-shaped elastic strip, the upper end of the elastic strip is stressed on the piston rod, the lower end of the elastic strip is stressed on the air cylinder, the piston rod enables the elastic strip to be elastically compressed along the longitudinal axis relative to the movement of the air cylinder, and the action line of the resultant force of the elastic force generated by the elastic strip is always coincided with the longitudinal axis.
The adsorption head is composed of a connecting cap and an adsorption cover, the connecting cap is sleeved at the lower end of the connecting pipe, and the adsorption head is made of elastic and transparent silica gel materials.
The upper end of the piston rod is connected with a press cap, the periphery of the press cap is provided with a vent hole, and the vent hole is communicated with the air channel.
The periphery of the upper end of the inflator is symmetrically provided with finger ring handles.
The upper end of the piston running cavity of the inflator is provided with a cylinder cover, the center of the cylinder cover is provided with a guide hole, and the upper end of the piston rod penetrates out of the guide hole.
The piston rod is provided with a shoulder matched with the inner end surface of the cylinder cover, and the top dead center position of the pressing stroke of the piston rod relative to the cylinder cover is limited.
The connecting pipe is internally provided with a buffer layer, the buffer layer is composed of a plurality of elastic sheets, and one ends of the elastic sheets are fixedly connected with the connecting pipe.
The invention discloses a pressing type adsorber for adsorbing human tissues, which comprises an air cylinder, a piston assembly and a one-way valve assembly, wherein the air cylinder comprises a piston running cavity and a connecting pipe, the connecting pipe is communicated with the piston running cavity, the piston assembly is arranged in the piston running cavity in an axially slidable manner, the one-way valve assembly is arranged at the inlet of the connecting pipe on the bottom surface of the piston running cavity, the piston assembly comprises a piston rod, a piston head and a piston, a gas channel is formed in the center of the piston rod in an axially penetrating manner, the piston rod and the piston head are separately provided and assembled together, the piston head is connected to the lower end of the piston rod, and a passage communicated with the; the piston is sleeved on a piston mounting part between the piston rod and the piston head, the lower end face of the piston is lapped on the top end of the piston head, the upper end face of the piston head is provided with a check valve at a passage, the lower end of a connecting pipe of the air cylinder is provided with an adsorption head, when the piston moves downwards relative to the piston operation cavity, the check valve is opened, the check valve component is closed, and the piston operation cavity is allowed to be communicated with the outside through an air channel in the piston rod; when the piston moves upwards relative to the piston operation cavity, the check valve is closed, the check valve component is opened, the piston operation cavity is communicated with the connecting pipe, corresponding adsorption force can be provided according to the thickness and the size of human tissues, the flatness and the integrity of the human tissues are guaranteed in the process of moving the human tissues, the human tissues are not damaged, and the later healing of the human tissues is facilitated.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of section I of FIG. 2;
FIG. 4 is a cross-sectional view of the piston assembly of the present invention during downward movement;
FIG. 5 is an enlarged view of section II of FIG. 4;
FIG. 6 is a schematic perspective view of a piston rod of the present invention;
fig. 7 is a sectional view of a connection pipe of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 7 are schematic structural views of the present invention.
Wherein the reference numerals are: the gas cylinder comprises a gas cylinder 1, a piston operation cavity 11, a connecting pipe 12, a finger ring handle 13, a cylinder cover 14, a piston assembly 2, a convex shoulder 20, a piston rod 21, a piston head 22, a piston 23, a gas channel 24, a passage 25, a piston mounting part 26, a flange body 27, a clamping convex 28, a concave ring 29, a check valve 3, a valve seat 31, a valve pad 32, a spring 33, a check valve assembly 4, a valve core 41, a sealing ring 42, a gas exhaust hole 43, a gas hole 44, an annular convex body 45, a sealing pad 46, a buffer ring 47, an adsorption head 5, a connecting cap 51, an adsorption cover 52, an elastic strip 6, a pressing cap 7, a vent hole 71 and a.
As shown in fig. 1 to 7:
a pressing type adsorber for adsorbing human tissues comprises a gas cylinder 1, a piston assembly 2 and a check valve assembly 4, wherein the gas cylinder 1 comprises a piston running cavity 11 and a connecting pipe 12, the connecting pipe 12 is communicated with the piston running cavity 11, the piston assembly 2 is arranged in the piston running cavity 11 in an axially sliding manner, the check valve assembly 4 is arranged at the inlet of the connecting pipe 12 at the bottom surface of the piston running cavity 11, the piston assembly 2 comprises a piston rod 21, a piston head 22 and a piston 23, a gas channel 24 is formed in the center of the piston rod 21 in an axially penetrating manner, the piston rod 21 and the piston head 22 are separately provided and assembled together, the piston head 22 is connected to the lower end of the piston rod 21, and a passage 25 communicated with the gas channel 24 is arranged in the center of the piston; the piston 23 is sleeved on a piston mounting part 26 between the piston rod 21 and the piston head 22, the lower end surface of the piston is lapped on the top end of the piston head 22, the upper end surface of the piston head 22 is provided with a check valve 3 at a passage 25, the lower end of a connecting pipe 12 of the air cylinder 1 is provided with an adsorption head 5, when the air cylinder is used, the adsorption head 5 is attached to human tissue, the piston rod 21 is pressed downwards, when the piston 23 moves downwards relative to the piston operation cavity 11, the check valve 3 is opened, the check valve component 4 is closed, the piston operation cavity 11 is allowed to be communicated with the outside through an air channel 24 in the piston rod 21, and air in the piston operation cavity 11 is discharged; when the piston 23 moves upwards relative to the piston operation cavity 11, the check valve 3 is closed, the check valve component 4 is opened, the piston operation cavity 11 is communicated with the connecting pipe 12, gas in the connecting pipe 12 enters the piston operation cavity 11, the adsorption head 5 can adsorb human tissues, and the reciprocating times of the piston rod are operated according to the thickness and the size of the human tissues.
In the embodiment, the check valve assembly 4 includes a valve core 41 and a sealing ring 42, the outer diameter of the valve core 41 is adapted to the aperture of the passage 25, the valve core 41 is provided with an exhaust hole 43 inside, an air hole 44 communicated with the exhaust hole 43 is arranged on the outer wall of the valve core 41 near the top end, the lower end of the valve core 41 is fixed in the connecting pipe 12, the top end of the valve core 41 protrudes out of the bottom surface of the piston operation cavity 11, the sealing ring 42 is sleeved on the top end of the valve core 41 for opening or closing the air hole 44, the sealing ring 42 can slide along the valve core 41, when the air pressure in the connecting pipe 12 is higher than the air pressure in the piston operation cavity 11, the air in the connecting pipe 12 can enter the piston operation cavity 11 from the gap between the sealing ring 42 and the outer wall of the valve core 41, when the air pressure in the connecting pipe 12 is lower than the air pressure in the piston operation, the piston is enabled to move to the left and the right of the middle part of the piston operation cavity, the top of the valve core 41 is prevented from entering the channel 25 on the piston head 22, when the human tissue is required to be separated from the adsorption head, the piston rod is pressed downwards, the top of the valve core 41 enters the gas channel 24 through the channel 25 on the piston head 22, the lower end face of the piston head 22 pushes the sealing ring 42 to slide downwards along the valve core 41, the gas hole 44 on the valve core 41 is exposed, meanwhile, the check valve 3 is opened when the valve core 41 enters the channel 25, the connecting pipe 12 is communicated with the gas channel 24 in the piston rod 21, external gas enters the connecting pipe 12, and the adsorption head 5 can not adsorb the human tissue any more due to the entering.
In the embodiment, the check valve 3 includes a valve seat 31, a valve pad 32 and a spring 33, the valve seat 31 is fixed to the upper end face of the piston head 22, one end of the spring 33 is connected to the valve seat 31 in a matching manner, and the other end of the spring 33 is connected to the valve pad 32 in a matching manner.
In the embodiment, a ring of annular convex body 45 is arranged on the outer wall of the valve core 41 near the lower end, and a sealing gasket 46 is arranged between the annular convex body 45 and the bottom surface of the piston operation cavity 11 to increase the air tightness.
In the embodiment, the cushion ring 47 is fitted over the valve body 41, the cushion ring 47 is positioned below the seal ring 42, the cushion ring 47 is elastically deformable, the valve body 41 is disengaged from the passage 25, and the seal ring 42 is returned to the tip end of the valve body 41 by the restoring force of the cushion ring 47 to seal the air hole 44.
In the embodiment, a ring of flange body 27 is formed on the piston rod 21 above the piston mounting portion 26, the lower end surface of the flange body 27 abuts against the upper end surface of the piston 23, a ring of locking protrusions 28 is vertically extended downwards on the periphery of the flange body 27, and a concave ring 29 adapted to the locking protrusions 28 is arranged on the upper end surface of the piston 23, so that the air tightness is increased, and the air leakage at the connection part is avoided.
In the embodiment, an elastic resetting device is arranged between the piston rod 21 and the air cylinder 1, the elastic resetting device comprises at least one arc-shaped elastic strip 6, the upper end of the elastic strip 6 is stressed on the piston rod 21, the lower end of the elastic strip 6 is stressed on the air cylinder 1, the piston rod 21 elastically compresses the elastic strip 6 along the longitudinal axis relative to the movement of the air cylinder 1, and the action line of the resultant force of the elastic force generated by the elastic strip 6 is always superposed with the longitudinal axis, so that the piston rod 21 can automatically reset.
In the embodiment, the adsorption head 5 is composed of a connection cap 51 and an adsorption cover 52, the connection cap 51 is sleeved at the lower end of the connection pipe 12, and the adsorption head 5 is made of elastic and transparent silica gel material.
In the embodiment, the upper end of the piston rod 21 is connected with the press cap 7, the periphery of the press cap 7 is provided with the vent hole 71, and the vent hole 71 is communicated with the air channel 24, so that the operation is convenient, and the blockage of the air channel 24 during the operation is avoided.
In the embodiment, the finger ring handles 13 are symmetrically arranged on the periphery of the upper end of the air cylinder 1, so that the operation is convenient.
In the embodiment, the cylinder head 14 is arranged at the upper end of the piston running cavity 11 of the air cylinder 1, the center of the cylinder head 14 is provided with a guide hole, and the upper end of the piston rod 21 penetrates out of the guide hole.
In the embodiment, the piston rod 21 is provided with a shoulder 20 which is engaged with an inner end surface of the cylinder head 14, and defines a top dead center position of a pressing stroke of the piston rod 21 with respect to the cylinder head 14.
In the embodiment, a buffer layer 8 is disposed in the connection pipe 12, the buffer layer 8 is composed of a plurality of elastic sheets, and one end of each elastic sheet is fixedly connected to the connection pipe 12.
The operation method of the invention comprises the following steps: the forefinger and the middle finger are inserted into the finger ring handle 13, the adsorption head is attached to the human tissue, the thumb presses the piston rod 21 downwards, when the piston 23 moves downwards relative to the piston operation cavity 11, the check valve 3 is opened, the check valve component 4 is closed, the piston operation cavity 11 is allowed to be communicated with the outside through the gas channel 24 in the piston rod 21, the gas in the piston operation cavity 11 is discharged, the thumb releases the piston rod 21, under the action of the restoring force of the elastic strip 6, when the piston 23 moves upwards relative to the piston operation cavity 11, the check valve 3 is closed, the check valve component 4 is opened, the piston operation cavity 11 is communicated with the connecting pipe 12, the gas in the connecting pipe 12 enters the piston operation cavity 11, the adsorption head 5 can adsorb the human tissue, the reciprocating times of the piston rod are operated according to the thickness and the size of the human tissue, the piston rod is pressed each time, the piston moves to the left and the right of the middle, preventing the top of the spool 41 from entering the passageway 25 in the piston head 22; when the human tissue is required to be separated from the adsorption head, the piston rod is pressed downwards, so that the top of the valve core 41 enters the gas channel 24 through the passage 25 on the piston head 22, the lower end surface of the piston head 22 pushes the sealing ring 42 to slide downwards along the valve core 41 to expose the gas hole 44 on the valve core 41, meanwhile, the valve core 41 opens the valve pad 32 of the check valve 3 because of entering the passage 25, the connecting pipe 12 is communicated with the gas channel 24 in the piston rod 21, the external gas enters the connecting pipe 12, the human tissue can be taken down because the adsorbing head 5 does not adsorb the human tissue because of the gas entering the connecting pipe, the thumb loosens the piston rod 21, when the piston 23 moves upward relative to the piston travel chamber 11 by the restoring force of the elastic strip 6, the spool 41 is disengaged from the passage 25, under the action of the restoring force of the buffer ring 47, the sealing ring 42 is reset to the top end of the valve core 41 for closing the air hole 44, so that the subsequent use is facilitated.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the invention.
Claims (9)
1. A push type adsorber for adsorbing human tissues, characterized by: comprises an air cylinder (1), a piston assembly (2) and a one-way valve assembly (4), the inflator (1) comprises a piston running cavity (11) and a connecting pipe (12), the connecting pipe (12) is communicated with the piston running cavity (11), the piston assembly (2) is arranged in the piston running cavity (11) in an axially sliding way, the one-way valve component (4) is arranged at the inlet of the connecting pipe (12) at the bottom surface of the piston running cavity (11), the piston assembly (2) comprises a piston rod (21), a piston head (22) and a piston (23), a gas channel (24) is formed in the center of the piston rod (21) along the axial direction, the piston rod (21) and the piston head (22) are provided separately and assembled together, the piston head (22) is connected to the lower end of the piston rod (21), and a passage (25) communicated with the gas channel (24) is formed in the center of the piston head (22); the piston (23) is sleeved on a piston mounting portion (26) between the piston rod (21) and the piston head (22), the lower end face of the piston is lapped on the top end of the piston head (22), a check valve (3) is arranged at a passage (25) on the upper end face of the piston head (22), an adsorption head (5) is arranged at the lower end of a connecting pipe (12) of the gas cylinder (1), when the piston (23) moves downwards relative to the piston operation cavity (11), the check valve (3) is opened, the check valve assembly (4) is closed, and the piston operation cavity (11) is allowed to be communicated with the outside through a gas channel (24) in the piston rod (21); when the piston (23) moves upwards relative to the piston running cavity (11), the check valve (3) is closed, the one-way valve component (4) is opened, and the piston running cavity (11) is communicated with the connecting pipe (12); the check valve assembly (4) comprises a valve core (41) and a sealing ring (42), the outer diameter of the valve core (41) is matched with the aperture of the passage (25), an exhaust hole (43) is formed in the valve core (41), an air hole (44) communicated with the exhaust hole (43) is formed in the position, close to the top end, of the outer wall of the valve core (41), the lower end of the valve core (41) is fixed in the connecting pipe (12), the top end of the valve core (41) protrudes out of the bottom surface of the piston operation cavity (11), the sealing ring (42) is sleeved at the top end of the valve core (41) and used for opening or closing the air hole (44), when the air pressure in the connecting pipe (12) is higher than the air pressure in the piston operation cavity (11), the air in the connecting pipe (12) can enter the piston operation cavity (11) from a gap between the sealing ring (42) and the outer wall of the valve core (41), and when the air pressure in the connecting pipe (12, the sealing ring (42) is tightly attached to the outer wall of the valve core (41) and prohibits the gas in the piston operation cavity (11) from entering the connecting pipe (12).
2. The depressible adsorber of claim 1 further comprising: check valve (3) include valve seat (31), valve pad (32) and spring (33), valve seat (31) with the up end of piston head (22) is fixed mutually, the one end of spring (33) with valve seat (31) cooperation is connected, the spring (33) other end with valve pad (32) cooperation is connected.
3. The depressible adsorber of claim 2 further comprising: a circle of annular convex body (45) is arranged on the outer wall of the valve core (41) and close to the lower end, and a sealing gasket (46) is arranged between the annular convex body (45) and the bottom surface of the piston running cavity (11).
4. The depressible suction apparatus of claim 3 wherein: a buffer ring (47) is sleeved on the valve core (41), the buffer ring (47) is positioned below the sealing ring (42), and the buffer ring (47) can elastically deform.
5. The depressible suction apparatus of claim 4 wherein: the top that lies in piston installation department (26) on piston rod (21) is formed with a round flange body (27), the lower terminal surface of flange body (27) with the up end of piston (23) is inconsistent, the periphery of flange body (27) is equipped with round card protruding (28) downwards perpendicularly to extending, be equipped with on the up end of piston (23) with concave ring (29) of card protruding (28) adaptation.
6. The depressible adsorber of claim 5 further comprising: the piston rod (21) with be equipped with elasticity resetting means between inflator (1), elasticity resetting means includes that at least one is curved elastic strip (6), the upper end of elastic strip (6) exert oneself in piston rod (21), and lower extreme exert oneself in inflator (1), piston rod (21) along longitudinal axis for the motion messenger of inflator (1) elastic strip (6) elastic compression, just the line of action of the resultant force of the elasticity that elastic strip (6) produced always with the longitudinal axis coincidence.
7. The depressible adsorber of claim 6 further comprising: the adsorption head (5) is composed of a connecting cap (51) and an adsorption cover (52), the connecting cap (51) is sleeved at the lower end of the connecting pipe (12), and the adsorption head (5) is made of elastic and transparent silica gel materials.
8. The depressible adsorber of claim 7 further comprising: the piston rod (21) upper end is connected with presses and emits (7), be equipped with on the periphery of pressing and emit (7) air vent (71), air vent (71) with gas channel (24) intercommunication.
9. The depressible adsorber of claim 8 further comprising: the periphery of the upper end of the inflator (1) is symmetrically provided with finger ring handles (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910527558.8A CN110101462B (en) | 2019-06-18 | 2019-06-18 | A push type adsorber for adsorbing human tissue |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910527558.8A CN110101462B (en) | 2019-06-18 | 2019-06-18 | A push type adsorber for adsorbing human tissue |
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| Publication Number | Publication Date |
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| CN110101462A CN110101462A (en) | 2019-08-09 |
| CN110101462B true CN110101462B (en) | 2020-05-05 |
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| CN201910527558.8A Expired - Fee Related CN110101462B (en) | 2019-06-18 | 2019-06-18 | A push type adsorber for adsorbing human tissue |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111297454B (en) * | 2020-03-18 | 2021-03-16 | 韦志永 | Tumor picker for oncology department |
| CN111297455B (en) * | 2020-03-18 | 2021-02-12 | 青岛大学附属医院 | Tumor uptake device for oncology department |
| CN112049884B (en) * | 2020-08-19 | 2022-04-05 | 博罗县石湾联科精密五金有限公司 | Dead spring assembly of anti-sticking |
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| CN2738740Y (en) * | 2004-10-18 | 2005-11-09 | 沈秀中 | Skin separator |
| CN201790874U (en) * | 2010-09-25 | 2011-04-13 | 张喜清 | Simple skin segregation device |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207216U (en) * | 1986-09-19 | 1988-03-16 | 高法宁 | Portable manual reciprocating type vacuum-drawing device |
| CN2738740Y (en) * | 2004-10-18 | 2005-11-09 | 沈秀中 | Skin separator |
| CN201790874U (en) * | 2010-09-25 | 2011-04-13 | 张喜清 | Simple skin segregation device |
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| CN110101462A (en) | 2019-08-09 |
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